thoughtbot/clearance — pull request #269 by calebthompson (2013-02-27 15:41:03+00:00)
Title: Use env[:clearance] instead of env[:session]

Because this test was passing before, but not actually working, I think
this also needs some sort of test to see if

Clearance::Session.new(env).signed_in?

is true, but I don't have time/knowledge about clearance to do that.

Tested this with `gem 'clearance', path: '/Users/caleb/code/clearance'`
in an app that was using a working BackDoor, and it passed the specs.